1073788840 has 48 divisors (see below), whose sum is σ = 2483214300. Its totient is φ = 417885696.

The previous prime is 1073788831. The next prime is 1073788841. The reversal of 1073788840 is 488873701.

It can be written as a sum of positive squares in 6 ways, for example, as 1072824516 + 964324 = 32754^2 + 982^2 .

It is a super-3 number, since 3×1073788840³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1073788841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44956 + ... + 64564.

Almost surely, 2^1073788840 is an apocalyptic number.

1073788840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1073788840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241607150).

1073788840 is an abundant number, since it is smaller than the sum of its proper divisors (1409425460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1073788840 is a wasteful number, since it uses less digits than its factorization.

1073788840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19694 (or 19653 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 1073788840 is about 32768.7173993734. The cubic root of 1073788840 is about 1024.0149457657.

The spelling of 1073788840 in words is "one billion, seventy-three million, seven hundred eighty-eight thousand, eight hundred forty".